다중주파수를 이용한 살오징어(Todarodes pacificus)의 분포밀도 추정
Density Estimation of Japanese Common Squid Todarodes pacificus Using Multi-frequency
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초록
The Japanese common squid Todarodes pacificus is one of the fish species within the total allowable catch (TAC) system which requires further investigation. In this study, the acoustic survey method was used to analyze the distribution of the Japanese common squid Todarodes pacificus across all the seas of South Korea. The sea area within Korea was investigated using the research vessels 20, 21, and 22 of the National Institute of Fisheries Science. The acoustic surveys were carried out from July to September 2019 and February to May 2020. The acoustic systems used in the survey had frequencies of 38 kHz and 120 kHz (EK60, EK80, Simrad, Norway) of the split-beam scientific echosounder. The results showed that, in spring, 277 m2/nmi2 was the highest in the east sea area, and the same in the summer season 880 m2/nmi2 was the highest in the east sea area. In autumn, the highest nautical area scattering coefficient (NASC) value was observed in the coastal portion of the south sea, and in winter, the NASC values were generally low in all the sea area.
Abstract
The Japanese common squid Todarodes pacificus is one of the fish species within the total allowable catch (TAC) system which requires further investigation. In this study, the acoustic survey method was used to analyze the distribution of the Japanese common squid Todarodes pacificus across all the seas of South Korea. The sea area within Korea was investigated using the research vessels 20, 21, and 22 of the National Institute of Fisheries Science. The acoustic surveys were carried out from July to September 2019 and February to May 2020. The acoustic systems used in the survey had frequencies of 38 kHz and 120 kHz (EK60, EK80, Simrad, Norway) of the split-beam scientific echosounder. The results showed that, in spring, 277 m2/nmi2 was the highest in the east sea area, and the same in the summer season 880 m2/nmi2 was the highest in the east sea area. In autumn, the highest nautical area scattering coefficient (NASC) value was observed in the coastal portion of the south sea, and in winter, the NASC values were generally low in all the sea area.
참고문헌 (18)
- Bower JR, "Laboratory observations on Todarodes pacificus(cephalopoda : ommastrephidae)egg masses", Am Malacol Bull, 13, pp.65~71 (1996)
- 한인성, "음향을 이용한 동해 남부해역에서 어류와 동물플랑크톤의 관계", 수산해양기술연구, 53(4), pp.376~385 (2017), 한국수산해양기술학회[DOI]
- 황두진, "음향조사에 의한 황해 주요어족생물의 분포특성에 관한 연구", 수산해양기술연구, 38(2), pp.140~148 (2002), 한국수산해양기술학회
- 황강석, "수산음향기법의 주파수에 따른 남해안의 어류의 군집 및 공간분포 특징", 수산해양기술연구, 52(4), pp.325~338 (2016), 한국수산해양기술학회[DOI]
- 조민진, "채낚기어업에서의 살오징어(Todarodes pacificus) 장기 어획변동과 생태 학적 특성 변화", 한국수산과학회지, 52(6), pp.685~695 (2019), 한국수산과학회[DOI]
- 강돈혁, "살오징어 (Todarodes pacifica)의 음향 반사강도 측정", 한국수산과학회지, 37(4), pp.345~353 (2004), 한국수산과학회
- 강돈혁, "제주도 서쪽 연안에서 음향자원 조사를 이용한 저층 어군의 시.공간 분포", Ocean and Polar Research, 30(2), pp.181~191 (2008), 한국해양과학기술원
- 이형빈, "음향 기법을 이용한 동계 독도 주변해역 매오징어(Watasenia scintillans) 및 기타어군의 분포 및 현존량 산정", 한국수산과학회지, 50(4), pp.421~428 (2017), 한국수산과학회[DOI]
- 이경훈, "황해에 분포하는 살오징어의 음향산란강도 특성 및 분포밀도 추정", 수산해양기술연구, 45(3), pp.157~164 (2009), 한국수산해양기술학회
- "1995-2020. Annual statistic database for common squid" (2021)[URL]
- Okutani T, "Cephalopod life cycles", pp.201~214 (1983), Academic Press
- Roper CFE, "FAO species catalogue. Vol. 3. Cephalopods of the world. An annotated and illustrated catalogue of species of interest to fisheries", pp.156~186 (1984), FAO
- Roper CFE, "An illustrated key to the families of the order teuthoidae(cephalopoda)", Smithoson Contrib Zool, 13, pp.1~32 (1969)
- A. L. Rosa, "Effects of environmental variability on the spawning areas, catch, and recruitment of the Japanese common squid, Todarodes pacificus (Cephalopoda: Ommastrephidae), from the 1970s to the 2000s", ICES Journal of Marine Science, 68(6), pp.1114~1121 (2011), Oxford University Press (OUP)[DOI]
- Y Sakurai, "Changes in inferred spawning areas of Todarodes pacificus(Cephalopoda: Ommastrephidae) due to changing environmental conditions", ICES Journal of Marine Science, 57(1), pp.24~30 (2000), Oxford University Press (OUP)[DOI]
- 송혜진, "기후변화와 서식지 수온 변화에 따른 북서태평양 살오징어(Todarodes pacificus)의 어획량 변동", 한국수산과학회지, 51(3), pp.338~343 (2018), 한국수산과학회[DOI]
- 양용수, "음향기술을 이용한 내수면 주요어종의 음향산란특성과 연직분포", 수산해양기술연구, 50(4), pp.476~486 (2014), 한국수산해양기술학회
- 윤은아, "수중 음향 기법을 이용한 인공어초에 서식하는 어류의 행동 특성", 수산해양기술연구, 50(2), pp.124~130 (2014), 한국수산해양기술학회[DOI]